Peromyscus polius Osgood 1904
Peromyscus polius Osgood 1904, Proc. Biol. Soc. Wash., 17: 61.
Type Locality: México, Chihuahua, Colonia García.
Vernacular Names: Chihuahuan Deermouse.
Distribution: WC Chihuahua, México.
Conservation: IUCN – Vulnerable.
Discussion: Species group indeterminate. A distinctive species of enigmatic relationships: initially placed with the truei group (Osgood, 1909) but provisionally reassigned to the boylii group by Hoffmeister (1951; also see Bradley and Schmidly, 1987, and commentary by Anderson, 1972:348). Allozymic distance data weakly support the latter association (Bradley et al., 1996; Kilpatrick and Zimmerman, 1975; Schmidly et al., 1985), but mitochondrial DNA (cytochrome b) interpretations of its kinship are inconclusive (Tiemann-Boege et al., 2000).